Technical Specification; Technical Sheet; Frequency Response And Impedance Curve - Beta Three TW Pro Series User Manual

TECHNICAL SPECIFICATION

Specification
System:
Woofer:
Frequency response(-3dB):
Sensitivity(1W@1m):
Max.SPL(1m):
Power:
Rated impedance:
Cabinet:
Mounting accessories:
Handle:
Surface:
Connector:
Cabinet dimension:
(W D H)
Package dimension:
(W D H)
N.W.(PC):
G.W.(PC):
Optional mounting accessories: Mobile Caster
Frequency response curve & Impedance curve
120
110
100
90
80
70
20 50
Passive low-frequency speaker
2 18"Woofer
1
40Hz-300Hz
2
97dB
3
127dB/133dB(PEAK)
4
1000W (RMS)
2000W (MUSIC)
4000W (PEAK)
4 Ohms
Plywood
4 Mobile Caster
6 Wooden handles
Polyurethane-based painting.
Steel grille is coated by powder to
provide strong ultra-Weatherability.
NL4 2(one input, one output)
567 1075 786mm
(22.3 42.3 30.9in)
1185 685 895mm
(46.6 27.1 35.3in)
85kg(187 lb)
90kg(198 lb)
100 200 500
Frequency (Hz)
Speaker Testing Method
1. Frequency Response
Use Pink noise to test the speaker in the anechoic chamber,
adjust the level to make the speaker work at its rated impedance
and set the output
1m away from the speaker.
2. Sensitivity
Use full range Pink noise which has been modified using
an EQ curve to test the
increasing the signal to make the speaker
impedance and set the
sensitivity 1m away from the speaker.
3. MAX.SPL
Use full range Pink noise which has been modified using
an EQ curve to test the
i n c r e a s e t h e s i g n a l t o m a k e t h e s p e a k e r
maximum power output level, then test the SPL1m away
from the speaker.
4. Rated Power
Use Pink noise to the IEC#268-5 standard to test the speaker,
increase the signal for a continuous period of100 hours,
the rated power is the power when the speaker will show
no visible or measurable damage.
频率响应
阻抗
1k 2k
TW218B
TW Series Pro Loudspeaker System
power at 1W, then test the frequency response
speaker in the anechoic chamber,
work at its rated
power output at 1W, then test
speaker in the anechoic chamber ,
w o r k a t i t s
60
35
18
10
5.5
3
5k 10k 20k
the
7